North America's Largest Sloping Green Roof Collapses

Jetson Green on Flickr
Aquascape's head office had "the largest sloping green roof in North America, planted with native prairie grass and flowers and a complete irrigation system." Who would think that a firm that makes water gardens could be so big, to have a quarter of a million square feet under that roof. Jetson Green described it as a "virtual prairie meadow in the sky."
Last Sunday, a section of it collapsed; the company says it "was likely the result of an ice dam that prevented water from the rapidly melting snow from draining off the roof."
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